Improves manageability
Conditioning agents are present, but low in the list.
- Dimethicone
- Dimethiconol
- Amodimethicone
Partly supported
A little slip, not a lot.
Biolage
All-In-One Multi-Benefit Oil
Leave-in / Rich leave-in, heavy
- Leave-in
- oil
- Detangler
- Also a heat protectant
- Sulfate-free
- Protein-free
Size3.4 fl oz
Price$25.22seen at one store · 3.4 oz
Price / oz$8.00/ozat 3.4 oz
Where to buy3 stores · $25.22–29.00
Add it to your products. We’ll tell you if it’s ever recalled.
Scent:
The ingredient list declares fragrance. What it smells of is not stated, and we do not guess.
Personal fit
Is this right for you?
Complete the consultation to see how well this product fits your hair and your goals. With 6,000+ products in our library, we can match you to the right ones.
- About 20 minutes, and your answers save as you go.
- Every product matched against your hair across the 20 factors we check.
- A personalized routine built around your schedule, styling habits, and local weather.
- Find products that do the same job at a lower cost.
- Your goals, scalp, damage history, water, budget, and scent preferences all shape your plan.
$49 with 60 days of follow-up questions and plan updates
$99 with 12 months. Pay once; the year renews only if you choose.
Factor
Your profile
Fit
Best for hair types
Curly–Coily
Not in your profile
Moisture level
Moderate
Not in your profile
Heat protection
Moderate
Not in your profile
Slip / detangling
Some
Not in your profile
Weight on hair
Rich
Not in your profile
Fragrance
Prominent
Not in your profile
Protein
None
Not in your profile
Silicone / wax buildup
High
Not in your profile
Clarifying wash needed
Moderate
Not in your profile
Parabens / preservatives
None of these listed
Not in your profile
Show all 20 factors we check
The rest of what your plan weighs on this product.
Essential oils
None listed
Not in your profile
Fast-drying alcohol
None
Not in your profile
Vegan / cruelty-free
Not yet verified
Not in your profile
Animal-derived ingredients
Not yet verified
Not in your profile
Heavy humectants
Not heavy
Not in your profile
Hard-water defence
None
Not in your profile
UV filter
None listed
Not in your profile
pH adjusted
No adjuster listed
Not in your profile
Ingredient list
21 ingredientsAbout average
Not in your profile
Where to buy it
Salons · Brand website
Not in your profile
The consultation builds your hair profile, checks every factor in this table against it, and tells you where this product fits or what to use instead.
Start your consultation$49 once, with 60 days of follow-up questions and plan updates. Nothing renews, and you never have to buy a product.
Your avoid-list
Same job for less elsewhere
$8.00/oz at 3.4 oz, more than 88% of the 891 leave-ins , which mostly run $1.42–5.78/oz.
Great for
Heat stylingthe brand positions this as a heat protectant
Protein-sensitive hairthat stiffens when protein is added
Curl definitionfilm formers hold a clump together
Coarse or dry hairthat absorbs everything you give it
Very dry hairno fast-drying alcohol in the list
Maybe skip if
this product has a scent
Curly-method routinesthese silicones need a detergent to remove
Oily scalp or fine hairthat gets weighed down
Hair that needs proteinthere is none in this list
Very dry hairno humectant appears in the list
What the formula actually does
Read from the label, not the marketing
Each row says where it comes from: F means we derived it from this product’s own ingredient list, S means it is a claim the brand makes that the formula neither confirms nor contradicts.
Weight on the hair
Rich
Heavy butters and waxes in the first eight ingredients.
Slip and detangling
Some
Some slip, mostly from esters or silicones rather than conditioners.
Water-binding (humectants)
None found
No humectants, so nothing here pulls water into the hair.
Oils and butters
Present, high in the list
Oils sit high in the list: a softening, coating formula.
Protein
None
No protein or amino acids in the list.
Heat protection
Claimed, no temperature given
Sold as a heat protectant; no temperature is stated.
Needs detergent to remove
Yes
Water-insoluble silicones or waxes: a detergent wash is what removes them.
Fragrance
Prominent
Fragrance is in the first eight ingredients, so it makes up a larger share of the formula.
from the formula
stated by the brand
reported by reviewers
Scale: 1 dot low · 5 dots high, within this product type.
Ingredients that matter
The ingredients that change a decision
The workhorse ingredients, plus anything lower down that changes a decision. The chips name what an ingredient does. They are not safety scores, and no ingredient here is rated good or bad on its own.
| Ingredient | What it does | Why it matters | Chip |
|---|---|---|---|
| Isododecane | solvent | The base everything else is dissolved in | Softens |
| Dimethicone | silicone | Smooths the cuticle and adds shine | Buildup |
| C11-13 Isoalkane | solvent | The base everything else is dissolved in | Neutral |
| Caprylic/Capric Triglyceride | light ester | Light slip without much weight | Softens |
| Dimethiconol | silicone | Smooths the cuticle and adds shine | Buildup |
| Amodimethicone | silicone | Smooths the cuticle and adds shine | Buildup |
| FragranceParfum/Fragrance | fragrance | The scent | Fragrance |
| Macadamia Ternifolia Seed Oil | oil | A small amount of oil for softness | Softens |
| Limonene | fragrance | The scent | Fragrance |
| Hexyl Cinnamal | fragrance | The scent | Fragrance |
| Coumarin | fragrance | The scent | Fragrance |
| Linalool | fragrance | The scent | Fragrance |
What the list leaves out, and what it carriesThe list carries no sulfates or drying alcohols. No protein: a moisture formula, not a repair one. Fragrance is on the label. Heavier butters sit in the working part of the list.
Full ingredient list (21)
In the US, ingredients above 1% are listed from most to least. Below 1% they can appear in any order. Each note keeps three things apart: what the ingredient generally does, its role in this type of product, and what its position can tell you.
-
1
Isododecane
General function
A fast-evaporating carrier that lets oils and polymers spread thinly, then leaves nothing behind.
Leading ingredientListed in the first three ingredients, it is likely a structural part of this formula.
PubChemMay suitFrizz-prone, damaged, or high-friction hairEmollients fill and smooth the surface of the strand, which lowers the friction that lifts the cuticle and reads as roughness.
- solvent
- emollient
-
2
Dimethicone
General function
The most common conditioning silicone. It coats the strand for shine, slip, and frizz control, and needs a detergent (not just water) to wash out.
Leading ingredientListed in the first three ingredients, it is likely a structural part of this formula.
May suitClimate-sensitive or frizz-prone hairA surface film slows how quickly humidity reaches the cortex, which is what limits swelling-driven frizz in damp air.
May suitFrizz-prone, damaged, or high-friction hairLays a smooth film along the cuticle, which lowers combing friction and flattens the surface irregularities that read as frizz.
May not suitBuild-up-sensitive routinesDimethicone does not disperse in water. On a routine that skips detergent it stays on the hair and accumulates wash after wash.
- silicone
- emollient
- conditioning agent
-
3
C11-13 Isoalkane
General function
A branched hydrocarbon from coconut- or palm-derived fatty alcohols. It spreads other ingredients thinly and evaporates, which is how a product can feel weightless once it dries.
Leading ingredientListed in the first three ingredients, it is likely a structural part of this formula.
- solvent
-
4
Caprylic/Capric Triglyceride
General function
A light, refined coconut-derived oil that spreads easily and does not go rancid. It gives slip without a heavy feel.
Supporting ingredientListed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
May suitFine or easily flattened hairA light emollient: it softens the surface with noticeably less weight than an oil or a butter.
May suitFrizz-prone, damaged, or high-friction hairSpreads thin and lowers friction between strands without the heaviness of a fixed oil.
- light ester
- emollient
-
5
Dimethiconol
General function
A high-shine silicone often paired with dimethicone for a smoother, glossier finish.
Supporting ingredientListed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
PubChemMay suitClimate-sensitive or frizz-prone hairA surface film slows how quickly humidity reaches the cortex, which is what limits swelling-driven frizz in damp air.
May suitFrizz-prone, damaged, or high-friction hairLays a smooth film along the cuticle, which lowers combing friction and flattens the surface irregularities that read as frizz.
May not suitBuild-up-sensitive routinesDimethicone does not disperse in water. On a routine that skips detergent it stays on the hair and accumulates wash after wash.
- silicone
- emollient
-
6
Amodimethicone
General function
A silicone modified to stick where hair is damaged, so it smooths selectively instead of coating everything. It resists rinsing more than plain dimethicone.
Supporting ingredientListed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
International Journal of TrichologyMay suitClimate-sensitive or frizz-prone hairA surface film slows how quickly humidity reaches the cortex, which is what limits swelling-driven frizz in damp air.
May suitFrizz-prone, damaged, or high-friction hairAmino-functional silicone carries a positive charge, so it binds where the cuticle is worn rather than coating evenly. Damaged areas get most of it.
May suitMaximum-hold stylingFilm formers are what hold a style: they dry into a connected film across the strands so the shape resists movement.
- silicone
- conditioning agent
- film former
- ▾Below about here, the order stops meaning much. These are usually used at 1% or less.
-
7
Fragrance
· Parfum/Fragrance
General function
An undisclosed blend of scent ingredients. Regulations let it stay unlisted, so a fragrance-free product is the only way to be certain what is not in it.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
May not suitFragrance-sensitive routinesDeclared fragrance. On a fragrance-sensitive routine this is the line that decides it, wherever it sits on the label.
- fragrance
- declared fragrance
-
8
Macadamia Ternifolia Seed Oil
General function
A cushiony oil that absorbs reasonably well, common in smoothing treatments.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
May suitDry, coarse, or high-porosity hairCoats the surface and slows water leaving the strand, which is usually what coarse hair that dries out fast is missing.
May suitFrizz-prone, damaged, or high-friction hairA thin oil layer lowers friction between strands and flattens the raised cuticle that scatters light and catches on its neighbours.
- oil
- emollient
-
9
Argania Spinosa Kernel Oil
General function
Argan oil. A medium-weight oil used for shine and softness on the outside of the strand.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
May suitDry, coarse, or high-porosity hairCoats the surface and slows water leaving the strand, which is usually what coarse hair that dries out fast is missing.
May suitFrizz-prone, damaged, or high-friction hairA thin oil layer lowers friction between strands and flattens the raised cuticle that scatters light and catches on its neighbours.
- oil
- emollient
-
10
Moringa Oleifera Seed Oil
General function
A stable, light oil used for softness and shine.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
May suitDry, coarse, or high-porosity hairCoats the surface and slows water leaving the strand, which is usually what coarse hair that dries out fast is missing.
May suitFrizz-prone, damaged, or high-friction hairA thin oil layer lowers friction between strands and flattens the raised cuticle that scatters light and catches on its neighbours.
- oil
- emollient
-
11
Limonene
General function
A citrus-smelling fragrance component that EU rules require to be named separately because some people react to it.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
PubChemMay not suitFragrance-sensitive routinesOne of the 26 scent components the EU requires to be named individually above a threshold. It is named because it is a known contact allergen, not because it is unusual.
- fragrance
- named fragrance allergen
-
12
Hexyl Cinnamal
General function
A jasmine-like fragrance component named separately as a recognised allergen.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
PubChemMay not suitFragrance-sensitive routinesOne of the 26 scent components the EU requires to be named individually above a threshold. It is named because it is a known contact allergen, not because it is unusual.
- fragrance
- named fragrance allergen
-
13
Coumarin
General function
A sweet, hay-like fragrance component listed separately as a recognised allergen.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
PubChemMay not suitFragrance-sensitive routinesOne of the 26 scent components the EU requires to be named individually above a threshold. It is named because it is a known contact allergen, not because it is unusual.
- fragrance
- named fragrance allergen
-
14
Benzyl Alcohol
- preservative
- solvent
-
15
Linalool
General function
A floral fragrance component listed separately as a recognised contact allergen.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
PubChemMay not suitFragrance-sensitive routinesOne of the 26 scent components the EU requires to be named individually above a threshold. It is named because it is a known contact allergen, not because it is unusual.
- fragrance
- named fragrance allergen
-
16
Amyl Cinnamal
General function
A jasmine-like fragrance component named separately as a recognised allergen.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
PubChemMay not suitFragrance-sensitive routinesOne of the 26 scent components the EU requires to be named individually above a threshold. It is named because it is a known contact allergen, not because it is unusual.
- fragrance
- named fragrance allergen
-
17
Geraniol
General function
A rose-scented fragrance component, listed on its own because some people react to it.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
May not suitFragrance-sensitive routinesOne of the 26 scent components the EU requires to be named individually above a threshold. It is named because it is a known contact allergen, not because it is unusual.
- fragrance
- named fragrance allergen
-
18
Isoeugenol
General function
A spicy floral fragrance component named separately as a recognised allergen.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
May not suitFragrance-sensitive routinesOne of the 26 scent components the EU requires to be named individually above a threshold. It is named because it is a known contact allergen, not because it is unusual.
- fragrance
- named fragrance allergen
-
19
Alpha-Isomethyl Ionone
General function
A violet-like fragrance component named separately as a recognised allergen.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
PubChemMay not suitFragrance-sensitive routinesOne of the 26 scent components the EU requires to be named individually above a threshold. It is named because it is a known contact allergen, not because it is unusual.
- fragrance
- named fragrance allergen
-
20
Hydroxycitronellal
General function
A soft floral fragrance component named separately as a recognised allergen.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
PubChemMay not suitFragrance-sensitive routinesOne of the 26 scent components the EU requires to be named individually above a threshold. It is named because it is a known contact allergen, not because it is unusual.
- fragrance
- named fragrance allergen
-
21
Benzyl Benzoate
General function
A fragrance component with a faint balsamic scent, named separately on the label because it is a recognised contact allergen.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
PubChemMay not suitFragrance-sensitive routinesOne of the 26 scent components the EU requires to be named individually above a threshold. It is named because it is a known contact allergen, not because it is unusual.
- fragrance
- named fragrance allergen
What the whole list adds up to
- 11 fragrances
- 10 named fragrance allergens
- 7 emollients
- 3 solvents
- 3 silicones
- 3 oils
- 2 conditioning agents
- 1 light ester
- 1 film former
- 1 declared fragrance
- 1 preservative
Ingredient list captured 2026-08-23. Formulas change, so check the package in your hand when an ingredient matters to you.
Price · 3.4 oz
Seen at
$25.22
Good value under
$12
Priced above the products that do the same job. Stores sell it above the $12 line; products that do this job typically go for about $17 at this size.
Show the price ladder
Where we’ve seen it3 listings · 3 stores
-
Target
$25.223.4 oz · $7.42/ozOct 31Lowest per ozSale · was $50.45
-
Big Apple Buddy
$29.003.38 oz · $8.58/ozOct 31
-
Ulta Beauty
$29.003.4 ozAug 23
Sorted by price per ounce. Dated observations from our research, not live prices. Direct store pages, no affiliate links. We don’t sell this product.
How we work this out
- 3.4 oz is the size stores list most often; every comparison on this page is made at it. Other sizes are shown in the Sizes row and the store list.
- Seen at $25.22 is the price we have observed for the 3.4 oz. We need three stores before we call a price commonly seen.
- Good value under $12 comes from the 4 products we score as doing the same job as this one. A quarter of them cost less than $3.61/oz; at 3.4 oz that is $12. Under that line you are paying less than most of them.
- About $17 is what those same products typically cost at this size: the midpoint of their prices per ounce, scaled to 3.4 oz.
Formula
4
Formula score
4 of 10
Sold through salons, and 6 products that do the same job cost less. Part of what you pay for is where it is sold.
How the score is counted
- 6 products that do the same job cost less per ounce
- Costs more per ounce than 88% of the 891 leave-ins we’ve priced
- No conditioning agents up front in the formula
- No humectant either
- Conditioning agents up frontWhat makes wet hair comb through.2 pts
- A humectantBinds water into the hair.2 pts
- A light baseWater or a volatile carrier first, so it does not weigh hair down.2 pts
- Oils or butters in the working zoneSoftens the strand rather than just coating it.2 pts
- No detergent-dependent filmNothing that needs a clarifying wash to remove.1 pt
- Fragrance kept out of the top eightScent as a finishing touch, not a major share.1 pt
The formula score measures completeness for the job: a weighted share of the systems this product type is usually built around that we find in this list. It does not rate how well the product works or its quality, and it never compares across product types.
Does the same job, for less
Formulas that do the same things (cleanse, condition, coat or hold) for less per ounce. Scent, texture and where you buy them can still differ.
ORSLowest cost per oz
Olive Oil Thermalast Heat Protection Serum
$1.33/oz $6.67/oz less
- Heat protect
- Protein-free
- Alcohol-free
- Function
- Also
Bed HeadLighter feel
A Glass Act Heat & UV Shield Oil
$4.83/oz $3.17/oz less
- Protein-free
- Alcohol-free
- Medium weight
- Function
- Also
MatrixClose function
Unbreak My Blonde Reviving Leave-In Treatment
$4.61/oz $3.39/oz less
- Protein-free
- Rich
- Alcohol-free
- Function
- Also
See more alternatives in the product library
These products do a similar job. We haven’t matched them to you. Find the one that fits your hair, routine and budget
Final decision
Should you buy it?
Similar results available for lessBest user
People who blow-dry or flat-iron, looking for heat protection and a protein-free formula
Biggest tradeoff
Not ideal for anyone sensitive to fragrance, curly-method routines, or oily scalps and fine hair
We do not sell products or take placement fees. This page states what the formula and the prices show; the consultation is what matches it to a person.
Claims check
What the brand says, and what the formula shows
Claims are quoted from the brand. We mark a claim supported, partly supported or conflicting only when the ingredient list speaks to it. Everything else stays "stated by the brand". That isn’t a criticism: most claims can’t be checked from a label.
0
SupportedBacked by ingredients
2
Partly supportedSome supporting logic
2
Stated by brandNo clear evidence
0
Potential conflictFormula works against claim
Detangles instantly
Conditioning agents are present, but low in the list.
- Dimethicone
- Dimethiconol
- Amodimethicone
Partly supported
A little slip, not a lot.
Helps prevent breakage from brushing
No protein or bond ingredient appears in the list.
—
Stated by brand
Can’t be confirmed from label.
Controls frizz, antistatic, controls flyaways
Possible from silicones or film formers, but not something the list targets.
- Dimethicone
- Dimethiconol
- Amodimethicone
Stated by brand
May help, but not a primary focus.
How to read this
We look at the first 10–15 ingredients and what they do in a formula, not at the marketing. If the list doesn't speak to a claim, we don't assume.
Reviewers
What people report
Themes that come up again and again in sourced reviews, written by our researchers in their own words. We don’t store or scrape star ratings.
Lightweight, does not leave heavy oil residue despite being an oil
Praised as multi-tasker (pre-shampoo treatment, leave-in, overnight mask)
Some fine-hair users report it feels slightly heavy if overused
fine hairMore from Biolage
How this page was made
- Everything above comes from our researched product record: identity, the ingredient list as printed, the brand's own claims, dated prices and review themes our researchers wrote in their own words. No part of this page is written by hand for one product.
- The value band is a fixed label over two stored numbers: this product’s cost per ounce as a percentile of every product of this type we have priced, each at the size it is most often sold in, and how many products we score as doing the same job cost at least a quarter less per ounce.
- Both scores out of ten are defined on this page. The formula score is completeness for the job, computed from a fixed per-format checklist shown beneath the gauge; the price score is cost per ounce against every product of this type we have priced.
- The "Is this right for you?" panel reads only your own consultation answers, and it applies exactly the filters our recommendation engine applies. It is computed when you load the page and is never stored on it.
- 3 sources consulted for this product (3 manufacturer or regulatory, 0 retailer, 0 editorial), last checked 2026-08-25.
- Ingredient references are linked for 11 of 19 product-aware annotations on this page. Fit notes are general formulation guidance. They aren’t a verdict on the finished product or on you.
- We haven’t tested this product in a lab, and we don’t physically test your hair. Formula readings come from the ingredient list. Claims about how it behaves are labelled as the brand's.
- Ingredient order tells you relative amount only above roughly 1%. Prices are what we saw on the dates shown and can change.
- Ingredient names link to our ingredient library, where each entry shows what it does, which product types use it, and where it usually sits on a label across everything we have researched.
- This is cosmetic information, not medical advice, and nothing here diagnoses or treats a health condition.
- Formula readings: derivation v23. Record last updated 2026-08-25.
